However, a brute-force method is: sudo pkill blued 'blued' is the OS X bluetooth daemon, and it will automatically restart when terminated at least when I tested it on my El Capitan machine. On El Capitan, it's kind of tricky because it doesn't allow you to unload system services. Yeah, I could open the lid and use the track pad, but it's on the other side of the wall from my desk space. I tried the blueutil solution on my High Sierra, and it worked like a charm.
On High Sierra, none of the command line options worked for me. The only thing that will work for me is a restart of the entire machine every morning. The first time I tried it it might have been something else that restarted my bluetooth services. Update 2: The above command no longer works and I wonder if it ever did. Update: Of the various command line options provided by Testing below the only one that seemed to work was the last, which is this. What is the equivalent on Mac OS X? I would like to restart my Bluetooth without having to restart the entire computer. On Linux, if one wishes to restart the Bluetooth service, they simply launch a terminal and issue the following command. Ask Different is a question and answer site for power users of Apple hardware and software.